JPH0864084A - Buffer type gas-blast circuit-breaker - Google Patents

Buffer type gas-blast circuit-breaker

Info

Publication number
JPH0864084A
JPH0864084A JP19509294A JP19509294A JPH0864084A JP H0864084 A JPH0864084 A JP H0864084A JP 19509294 A JP19509294 A JP 19509294A JP 19509294 A JP19509294 A JP 19509294A JP H0864084 A JPH0864084 A JP H0864084A
Authority
JP
Japan
Prior art keywords
sliding member
movable
buffer chamber
tip
type gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP19509294A
Other languages
Japanese (ja)
Inventor
Toshikazu Sato
敏和 佐藤
Hitoshi Mizoguchi
均 溝口
Katsumi Suzuki
克巳 鈴木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP19509294A priority Critical patent/JPH0864084A/en
Publication of JPH0864084A publication Critical patent/JPH0864084A/en
Pending legal-status Critical Current

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  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

PURPOSE: To obtain a buffer type gas-blast circuit-breaker with a high reliability which can control the movement of the movable contact of a resistance breaker in the latter period of the opening operation of the resistance breaker. CONSTITUTION: A movable arc contact 5 to compose a movable contact 2 is composed of a movable arc contact shoe 5a provided at the front end; a sliding member 5b provided on the rear surface side of the movable arc contact shoe 5a; a flange 5c provided at a specific position of the sliding member 5b; and a locking member 5d formed at the tip of the sliding member 5b. Furthermore, the sliding member 5b is provided by penetrating through the front end of an operating rod 7, and the locking member 5d is composed to slide in the operating rod 7. And a buffer chamber 16 is composed of the flange 5c formed to the sliding member 5b; a cylindrical guide member 11; and the front end of the operating rod 7. Consequently, a collision of the contact 2 and the rod 7 can be prevented.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、電力系統の発電所ある
いは開閉所に用いられるパッファ形ガス遮断器に係り、
特に、抵抗遮断方式の抵抗遮断部に改良を施したパッフ
ァ形ガス遮断器に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a puffer type gas circuit breaker used in a power plant power plant or switchgear,
In particular, the present invention relates to a puffer type gas circuit breaker in which a resistance breaking portion of a resistance breaking system is improved.

【0002】[0002]

【従来の技術】都市における発電所の建設難による電力
不足を補うため、都市から遠く離れた過疎地に発電所を
建設し、長距離送電線で都市部へ電力を送電する100
0kV送電が計画されており、これに伴って、1000
kV系統の変電所開閉機器に関する研究が進められてい
る。
2. Description of the Related Art In order to make up for a power shortage due to the difficulty of constructing a power plant in a city, a power plant is constructed in a depopulated area far from the city, and power is transmitted to the urban area by a long distance transmission line.
0kV power transmission is planned, and with this, 1000
Research on switchgear for substations of the kV system is underway.

【0003】この様な1000kV系統に適用される遮
断器としては、タンク形のパッファ形ガス遮断器が採用
され、また、抵抗遮断方式とする必要がある。その理由
は、送電線の建設費を低減するために、開閉サージ電圧
を1.6P.U以下とし、700Ω程度の抵抗を用いた
抵抗遮断によって、遮断サージを抑える必要があるから
である。この様なタンク形の遮断器では、前記抵抗と抵
抗遮断部は主遮断部と同一のタンク内に収納され、ま
た、主遮断部と抵抗遮断部とは並列に接続され、同一あ
るいは別々に駆動する方法がとられている。
As a circuit breaker applied to such a 1000 kV system, a tank type puffer type gas circuit breaker is adopted, and it is necessary to adopt a resistance breaking system. The reason is that in order to reduce the construction cost of the transmission line, the switching surge voltage is 1.6 P.s. This is because it is necessary to suppress the interruption surge by making resistance equal to or less than U and using resistance of about 700Ω. In such a tank-type circuit breaker, the resistance and the resistance breaking unit are housed in the same tank as the main breaking unit, and the main breaking unit and the resistance breaking unit are connected in parallel and driven in the same or separately. The way to do is taken.

【0004】図4は、上記抵抗遮断方式のパッファ形ガ
ス遮断器の遮断動作を概略図示したものである。即ち、
図において、25は主遮断部、26は抵抗遮断部、27
は前記抵抗遮断部26に直列に接続された抵抗、28は
電流を示し、また(A),(B),(C)はそれぞれ閉
路状態、開路途中状態、開路状態を示している。◎ま
ず、図4(A)に示した閉路状態においては、電流28
は主遮断部25を通って流れている。次に、図4(B)
に示した開路途中状態においては、主遮断部25を開極
して電流を遮断すると、電流28は抵抗遮断部26及び
抵抗27を通じて流れるようになる。続いて、図4
(C)に示した様に、抵抗遮断部26を開極すると、電
流は遮断されて開路状態になる。
FIG. 4 is a schematic diagram showing the breaking operation of the resistance breaking type puffer type gas circuit breaker. That is,
In the figure, 25 is a main interruption part, 26 is a resistance interruption part, 27
Is a resistor connected in series to the resistance breaker 26, 28 is a current, and (A), (B), and (C) are a closed state, an open circuit state, and an open state, respectively. ◎ First, in the closed state shown in FIG.
Flows through the main shutoff 25. Next, FIG. 4 (B)
In the mid-open circuit state shown in (1), when the main breaker 25 is opened to interrupt the current, the current 28 flows through the resistance breaker 26 and the resistor 27. Then, FIG.
As shown in (C), when the resistance breaking portion 26 is opened, the current is cut off and the circuit is opened.

【0005】また、従来から用いられている抵抗遮断部
としては、図5に示した特願平4−99394号に示さ
れたものがある。即ち、図5に示した抵抗接触子部にお
いて、電流を遮断する場合は、図示しない駆動装置によ
って、操作ロッド37を図中右方向へ移動させる。する
と、操作ロッド37は直ちに図中右方向へ動き始める
が、可動接触子32、ワイプロッド38及び絶縁ノズル
33は、ばね35によって図中左側に押圧されているた
め移動しない。その後、操作ロッド37の駆動が進み、
操作ロッド37がさらに右側へ移動し、操作ロッド37
の頭部37aが、前記ワイプロッド38の先端に形成さ
れた突起部38aに当たった時点で、可動接触子32、
ワイプロッド38及び絶縁ノズル33が操作ロッド37
と共に図中右方向へ動き始め、固定接触子31と可動接
触子32は開離を始める。
Further, as a resistance breaking portion which has been conventionally used, there is one disclosed in Japanese Patent Application No. 4-99394 shown in FIG. That is, in the resistance contact portion shown in FIG. 5, when the current is cut off, the operating rod 37 is moved rightward in the drawing by a driving device (not shown). Then, the operating rod 37 immediately starts moving to the right in the drawing, but the movable contact 32, the wipe rod 38, and the insulating nozzle 33 do not move because they are pressed to the left in the drawing by the spring 35. After that, the driving of the operation rod 37 proceeds,
The operating rod 37 moves further to the right, and the operating rod 37
When the head portion 37a of the movable contact 32a hits the protrusion 38a formed at the tip of the wipe rod 38, the movable contactor 32,
The wipe rod 38 and the insulating nozzle 33 are the operation rod 37.
At the same time, the fixed contactor 31 and the movable contactor 32 start to move to the right in the figure, and start to separate.

【0006】[0006]

【発明が解決しようとする課題】しかしながら、上述し
た様な従来のパッファ形ガス遮断器の抵抗遮断部には、
以下に述べる様な問題点があった。即ち、前記可動接触
子32や操作ロッド37は速度vを有する運動体である
ため、開極終期状態において、最後には制動をかけて停
止させなければならない。この場合、操作ロッド37に
ついては、それに連結されている操作機構部に、衝突体
を受け止める緩衝装置がついているため問題ないが、可
動接触子32にはなんら緩衝装置が付いていない。この
ため、図5(B)に示した様に、慣性力によって可動接
触子32が暴走し、ばね35を破壊したり、また、可動
接触子32と操作ロッド37の頭部とが衝突したりする
現象が起こっていた。
However, in the resistance breaker of the conventional puffer type gas circuit breaker as described above,
There were problems as described below. That is, since the movable contactor 32 and the operating rod 37 are moving bodies having a velocity v, they must be braked and stopped at the end in the final opening state. In this case, with respect to the operation rod 37, there is no problem because the operation mechanism portion connected to the operation rod 37 has a shock absorber for receiving the collision object, but the movable contact 32 does not have any shock absorber. Therefore, as shown in FIG. 5 (B), the movable contact 32 runs away due to inertial force, destroys the spring 35, and the movable contact 32 collides with the head of the operation rod 37. The phenomenon was happening.

【0007】本発明は、上述した様な従来技術の欠点を
解消するために提案されたもので、その目的は、抵抗遮
断部の開極動作後期において、抵抗遮断部の可動接触子
の移動を制御することができる、信頼性の高いパッファ
形ガス遮断器を提供することにある。
The present invention has been proposed in order to solve the above-mentioned drawbacks of the prior art. The purpose of the present invention is to prevent movement of the movable contactor of the resistance breaking portion in the latter stage of the opening operation of the resistance breaking portion. An object is to provide a highly reliable puffer type gas circuit breaker that can be controlled.

【0008】[0008]

【課題を解決するための手段】請求項1に記載の発明
は、消弧性のガスを充填した容器内に、主遮断部と並列
に接続された抵抗遮断部を備え、前記抵抗遮断部が、接
離可能な可動接触子部と固定接触子部とから構成され、
前記可動接触子部が操作ロッドによって開閉駆動される
ように構成されたパッファ形ガス遮断器において、前記
抵抗遮断部の可動接触子部に、その開離動作時の衝撃を
緩和する緩衝室を設けたことを特徴とするものである。
According to a first aspect of the present invention, in a container filled with arc-extinguishing gas, a resistance breaking portion connected in parallel with a main breaking portion is provided, and the resistance breaking portion is provided. , A movable contact part that can be contacted and separated and a fixed contact part,
In the puffer-type gas circuit breaker configured to open / close drive the movable contact portion, a buffer chamber is provided in the movable contact portion of the resistance interrupting portion to mitigate impact during opening / closing operation. It is characterized by that.

【0009】請求項2に記載の発明は、請求項1に記載
の発明において、前記可動接触子部が、先端に設けられ
た可動アーク接触子と、前記可動アーク接触子の背面側
に設けられた摺動部材と、前記摺動部材の所定の位置に
設けられた鍔部と、前記摺動部材の先端部に形成された
係止部とから構成され、また、前記摺動部材が前記操作
ロッドの先端部を貫通して配設され、前記係止部が操作
ロッド内を摺動するように構成され、さらに、前記摺動
部材に形成された鍔部と操作ロッドの先端部によって、
前記緩衝室が構成されていることを特徴とするものであ
る。
According to a second aspect of the invention, in the first aspect of the invention, the movable contact portion is provided on the movable arc contactor provided at the tip and on the back side of the movable arc contactor. A sliding member, a flange portion provided at a predetermined position of the sliding member, and a locking portion formed at a tip end portion of the sliding member. The locking portion is arranged so as to penetrate through the tip of the rod, and the locking portion is configured to slide in the operating rod.Furthermore, by the flange portion formed on the sliding member and the tip of the operating rod,
The buffer chamber is configured.

【0010】請求項3に記載の発明は、請求項1に記載
の発明において、前記操作ロッドの先端部には緩衝室用
筒が配設され、一方、可動接触子部には断面T字形の摺
動部材が配設され、その先端部が前記緩衝室用筒内を摺
動するように構成され、この緩衝室用筒と摺動部材によ
って、前記緩衝室が形成されていることを特徴とするも
のである。
According to a third aspect of the present invention, in the first aspect of the invention, a buffer chamber cylinder is arranged at the tip of the operating rod, while the movable contact has a T-shaped cross section. A sliding member is provided, and a tip portion of the sliding member is configured to slide in the buffer chamber cylinder, and the buffer chamber is formed by the buffer chamber cylinder and the sliding member. To do.

【0011】[0011]

【作用】請求項1乃至請求項3に記載の発明によれば、
可動接触部に緩衝室を設けることによって、遮断後期に
可動接触子部に働く慣性力を抑制することができるの
で、可動接触子部が操作ロッドの端部に衝突することを
防止できる。
According to the inventions of claims 1 to 3,
By providing the buffer chamber in the movable contact portion, it is possible to suppress the inertial force acting on the movable contact portion in the latter half of the shutoff, so that the movable contact portion can be prevented from colliding with the end portion of the operation rod.

【0012】[0012]

【実施例】以下、本発明のパッファ形ガス遮断器の抵抗
遮断部の一実施例を、図1乃至図3に基づいて具体的に
説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the resistance breaking portion of the puffer type gas circuit breaker of the present invention will be specifically described below with reference to FIGS.

【0013】(1)第1実施例 図1(A)に基づいて、本実施例の抵抗遮断部の構成に
ついて説明する。即ち、図において、1は固定接触子
部、2は可動接触子部である。この固定接触子部1は、
固定アーク接触子3とばね4とから成り、固定側支持部
材17に固定されている。一方、可動接触子部2は、前
記固定アーク接触子3と接離する可動アーク接触子部5
を、ばね6を介して、操作ロッド7の先端部に取り付け
られた円筒状のガイド部材11に摺動可能に配設し、ま
た、絶縁ノズル8をノズル押さえ9によって固定して構
成されている。
(1) First Embodiment The structure of the resistance breaker of the present embodiment will be described with reference to FIG. That is, in the figure, 1 is a fixed contact portion, and 2 is a movable contact portion. This fixed contact portion 1 is
It is composed of a fixed arc contactor 3 and a spring 4, and is fixed to a fixed side support member 17. On the other hand, the movable contactor portion 2 has a movable arc contactor portion 5 that contacts and separates from the fixed arc contactor 3.
Is slidably disposed on a cylindrical guide member 11 attached to the tip of the operating rod 7 via a spring 6, and an insulating nozzle 8 is fixed by a nozzle retainer 9. .

【0014】また、前記可動アーク接触子部5は、先端
に設けられた可動アーク接触子5a、この可動アーク接
触子5aの背面側に設けられた摺動部材5b、この摺動
部材5bの所定の位置に設けられた鍔部5c、及び前記
摺動部材5bの先端部に形成された係止部5dから構成
されている。さらに、前記摺動部材5bは、操作ロッド
7の先端部を貫通して配設され、前記係止部5dが操作
ロッド7内を摺動するように構成されている。また、前
記ばね6は、操作ロッド7の先端部と係止部5dの間に
配設されている。そして、前記摺動部材5bに形成した
鍔部5c、前記円筒状のガイド部材11及び操作ロッド
7の先端部によって、緩衝室16が構成されている。な
お、前記円筒状のガイド部材11が、緩衝室16の壁面
を形成していることになる。
The movable arc contactor portion 5 has a movable arc contactor 5a provided at its tip, a sliding member 5b provided on the back side of the movable arc contactor 5a, and a predetermined sliding member 5b. It is composed of a collar portion 5c provided at the position and a locking portion 5d formed at the tip portion of the sliding member 5b. Further, the sliding member 5b is provided so as to penetrate the tip end portion of the operating rod 7, and the locking portion 5d is configured to slide inside the operating rod 7. The spring 6 is disposed between the tip of the operating rod 7 and the locking portion 5d. A buffer chamber 16 is formed by the flange portion 5c formed on the sliding member 5b, the cylindrical guide member 11 and the distal end portion of the operating rod 7. The cylindrical guide member 11 forms a wall surface of the buffer chamber 16.

【0015】さらに、開極ラッチ10は操作ロッド7に
固定され、前記円筒状のガイド部材11と共に、パッフ
ァ室から流出するガス流路室12を形成している。ま
た、パッファシリンダ13は操作ロッド7に支持固定さ
れ、パッファピストン14と共にパッファ室15を形成
し、パッファピストン14は可動側支持部材18に支持
されている。なお、固定側支持部材17と可動側支持部
材18は、絶縁筒19に支持固定されている。
Further, the opening latch 10 is fixed to the operating rod 7 and forms, together with the cylindrical guide member 11, a gas passage chamber 12 flowing out from the puffer chamber. Further, the puffer cylinder 13 is supported and fixed to the operation rod 7, forms a puffer chamber 15 together with the puffer piston 14, and the puffer piston 14 is supported by the movable side support member 18. The fixed side support member 17 and the movable side support member 18 are supported and fixed to the insulating cylinder 19.

【0016】この様な構成を有する抵抗遮断部を用いた
パッファ形ガス遮断器は、以下の様に作用する。即ち、
図1(A)は投入状態を示したものであるが、この状態
では、固定アーク接触子3と可動アーク接触子5aは、
ばね6の付勢力によって突き合わせ状態で押圧されてい
る。しかしながら、図4(A)で説明した様に、これら
の接触子間には、常時の通電状態では電流は流れず、図
4(B)に示す開極途上においてのみ電流が流れる。し
かも、その電流値は抵抗27によって制限されて小さく
なる。
The puffer type gas circuit breaker using the resistance breaker having such a structure operates as follows. That is,
FIG. 1 (A) shows a closed state. In this state, the fixed arc contactor 3 and the movable arc contactor 5a are
The urging force of the spring 6 is pressed in a butt state. However, as described with reference to FIG. 4A, current does not flow between these contacts in the normally energized state, and current flows only during the contact opening shown in FIG. 4B. Moreover, the current value is limited by the resistor 27 and becomes small.

【0017】従って、必要な通電容量は図1(A)に示
す固定アーク接触子3と可動アーク接触子5の突き合わ
せ接触によって確保できる。また、電流を遮断する場合
は、図示してない駆動装置によって、操作ロッド7を図
中右側へ移動させると、操作ロッド7は直ちに右側に動
き始めるが、可動接触子部2の可動アーク接触子部5、
絶縁ノズル8、ノズル押さえ9は、ばね6で左側に押圧
されているため動かない。その後、駆動が進み、図1
(B)に示す様に、操作ロッド7が右側へ移動し、開極
ラッチ10がノズル押さえ9の端部9aに当たった時点
で、可動接触子部5の可動アーク接触子5a、絶縁ノズ
ル8、ノズル押さえ9が動き始め、固定アーク接触子3
と可動アーク接触子5aは開離する。なお、図1(C)
は開離途中の状態を示したものである。また、図2は開
極位置と時間との関係を示したもので、開極速度が最大
になった時点で開極することができる。
Therefore, the required current-carrying capacity can be secured by the abutting contact of the fixed arc contact 3 and the movable arc contact 5 shown in FIG. Further, in the case of cutting off the current, when the operating rod 7 is moved to the right side in the figure by a driving device (not shown), the operating rod 7 immediately starts moving to the right side, but the movable arc contactor of the movable contactor section 2 is moved. Part 5,
Since the insulating nozzle 8 and the nozzle retainer 9 are pressed to the left by the spring 6, they do not move. After that, the drive proceeds and
As shown in (B), when the operation rod 7 moves to the right and the opening latch 10 hits the end 9a of the nozzle retainer 9, the movable arc contactor 5a of the movable contactor 5 and the insulating nozzle 8 are contacted. , The nozzle retainer 9 starts to move, and the fixed arc contactor 3
The movable arc contactor 5a is opened. Note that FIG. 1 (C)
Shows the state in the middle of separation. Further, FIG. 2 shows the relationship between the contact opening position and time, and the contact can be opened when the contact opening speed becomes maximum.

【0018】ところで、操作機構部には緩衝装置がつい
ているため、操作ロッド7、パッファシリンダ13等に
は、開極後期において制動作用が働くため、徐々に速度
が低下し、最終的に速度0となって停止する。一方、可
動接触子部5の可動アーク接触子5a、絶縁ノズル8、
ノズル押さえ9には、駆動方向の向きの慣性力が働く
が、摺動部材5bに形成された鍔部5c、緩衝室壁とな
る円筒状のガイド部材11及び操作ロッド7で構成され
る緩衝室16内のガスが圧縮される結果、慣性力と反対
向きの力を発生させることができる。
By the way, since the operating mechanism is provided with a shock absorber, the operating rod 7, the puffer cylinder 13 and the like are subjected to a braking action in the latter stage of opening, so that the speed gradually decreases and finally the speed becomes zero. And stop. On the other hand, the movable arc contactor 5a of the movable contactor section 5, the insulating nozzle 8,
An inertial force acting in the driving direction acts on the nozzle retainer 9, but a flange portion 5c formed on the sliding member 5b, a cylindrical guide member 11 serving as a buffer chamber wall, and an operating rod 7 As a result of the gas in 16 being compressed, a force opposite to the inertial force can be generated.

【0019】この様に、本実施例によれば、可動接触部
に緩衝室を設けることによって、遮断後期に可動接触子
部に働く慣性力を抑制することができるので、可動接触
子部が操作ロッドの端部に衝突することを防止できる。
As described above, according to this embodiment, by providing the buffer chamber in the movable contact portion, it is possible to suppress the inertial force acting on the movable contact portion in the latter stage of shutoff, so that the movable contact portion is operated. It is possible to prevent the collision with the end portion of the rod.

【0020】(2)第2実施例 本実施例においては、図3に示した様に、操作ロッド7
の先端部には、緩衝室用筒22が配設されている。一
方、可動アーク接触子5aの背面側には、断面T字形の
摺動部材21が配設され、その先端部21aが前記緩衝
室用筒22内を摺動するように構成され、これら緩衝室
用筒22と摺動部材21によって、緩衝室23が形成さ
れている。また、可動アーク接触子5aと操作ロッドの
端面7aの間には、ばね24が配設され、可動アーク接
触子5aを固定アーク接触子3側に付勢している。
(2) Second Embodiment In this embodiment, as shown in FIG. 3, the operating rod 7 is used.
A buffer chamber cylinder 22 is provided at the tip of the. On the other hand, on the back side of the movable arc contactor 5a, a sliding member 21 having a T-shaped cross section is arranged, and its tip portion 21a is configured to slide in the buffer chamber cylinder 22. A buffer chamber 23 is formed by the barrel 22 and the sliding member 21. A spring 24 is provided between the movable arc contactor 5a and the end surface 7a of the operating rod to urge the movable arc contactor 5a toward the fixed arc contactor 3 side.

【0021】この様な構成を有する本実施例の抵抗遮断
部を有するパッファ形ガス遮断器においても、第1実施
例と同様の作用・効果が得られる。即ち、投入状態で
は、固定アーク接触子3と可動アーク接触子5aは、ば
ね24の付勢力によって突き合わせ状態で押圧されてい
る。一方、遮断後期では、可動アーク接触子部5の慣性
力を緩衝室23で吸収することができる。
Also in the puffer type gas circuit breaker having the resistance breaking portion of the present embodiment having such a configuration, the same operation and effect as in the first embodiment can be obtained. That is, in the closed state, the fixed arc contactor 3 and the movable arc contactor 5a are pressed in a butt state by the urging force of the spring 24. On the other hand, in the latter stage of interruption, the inertial force of the movable arc contactor portion 5 can be absorbed by the buffer chamber 23.

【0022】[0022]

【発明の効果】以上述べた様に、本発明によれば、可動
接触部に緩衝室を設けることによって、遮断後期に可動
接触子部に働く慣性力を抑制させることができるので、
可動接触子部が操作ロッドの端部に衝突することを防止
できる、信頼性の高いパッファ形ガス遮断器を提供する
ことができる。
As described above, according to the present invention, by providing the buffer chamber in the movable contact portion, it is possible to suppress the inertial force acting on the movable contact portion in the latter stage of the shutoff.
It is possible to provide a highly reliable puffer type gas circuit breaker capable of preventing the movable contact portion from colliding with the end portion of the operation rod.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明のパッファ形ガス遮断器の抵抗遮断部の
第1実施例を示す断面図であって、(A)は閉極状態、
(B)は開極直後の状態、(C)は開極途中の状態を示
している
FIG. 1 is a cross-sectional view showing a first embodiment of a resistance breaking portion of a puffer type gas circuit breaker of the present invention, in which (A) is a closed state;
(B) shows a state immediately after opening, and (C) shows a state during opening.

【図2】図1に示した実施例における開極位置と時間と
の関係を示す図
FIG. 2 is a diagram showing a relationship between an opening position and time in the embodiment shown in FIG.

【図3】本発明のパッファ形ガス遮断器の抵抗遮断部の
第2実施例を示す断面図
FIG. 3 is a cross-sectional view showing a second embodiment of the resistance breaking portion of the puffer type gas circuit breaker of the present invention.

【図4】一般的な抵抗遮断方式のパッファ形ガス遮断器
の動作原理を示す図であって、(A)は閉極状態、
(B)は開極直後の状態、(C)は開極途中の状態を示
している
FIG. 4 is a diagram showing an operation principle of a general resistance cutoff type puffer type gas circuit breaker, in which (A) is a closed state;
(B) shows a state immediately after opening, and (C) shows a state during opening.

【図5】従来のパッファ形ガス遮断器の抵抗遮断部の構
成を示す断面図であって、(A)は閉極状態、(B)は
開極途中の状態を示している
5A and 5B are cross-sectional views showing a configuration of a resistance interruption part of a conventional puffer type gas circuit breaker, in which FIG. 5A shows a closed state and FIG. 5B shows an open state.

【符号の説明】[Explanation of symbols]

1…固定接触子部 2…可動接触子部 3…固定アーク接触子 4…ばね 5…可動アーク接触子部 5a…可動アーク接触子 5b…摺動部材 5c…鍔部 5d…係止部 6…ばね 7…操作ロッド 8…絶縁ノズル 9…ノズル押さえ 10…開極ラッチ 11…円筒状のガイド部材 12…ガス流路室 13…パッファシリンダ 14…パッファピストン 15…パッファ室 16…緩衝室 17…固定側支持部材 18…可動側支持部材 19…絶縁筒 21…摺動部材 22…緩衝室用筒 23…緩衝室 24…ばね DESCRIPTION OF SYMBOLS 1 ... Fixed contact part 2 ... Movable contact part 3 ... Fixed arc contact part 4 ... Spring 5 ... Movable arc contact part 5a ... Movable arc contact part 5b ... Sliding member 5c ... Collar part 5d ... Lock part 6 ... Spring 7 ... Operation rod 8 ... Insulation nozzle 9 ... Nozzle retainer 10 ... Opening latch 11 ... Cylindrical guide member 12 ... Gas channel chamber 13 ... Puffer cylinder 14 ... Puffer piston 15 ... Puffer chamber 16 ... Buffer chamber 17 ... Fixed Side support member 18 ... Movable side support member 19 ... Insulation cylinder 21 ... Sliding member 22 ... Buffer chamber cylinder 23 ... Buffer chamber 24 ... Spring

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 消弧性のガスを充填した容器内に、主遮
断部と並列に接続された抵抗遮断部を備え、前記抵抗遮
断部が、接離可能な可動接触子部と固定接触子部とから
構成され、前記可動接触子部が操作ロッドによって開閉
駆動されるように構成されたパッファ形ガス遮断器にお
いて、 前記抵抗遮断部の可動接触子部に、その開離動作時の衝
撃を緩和する緩衝室を設けたことを特徴とするパッファ
形ガス遮断器。
1. A container filled with arc-extinguishing gas is provided with a resistance breaker connected in parallel with a main breaker, wherein the resistance breaker is a movable contactor and a fixed contactor that can be contacted and separated. In a puffer type gas circuit breaker configured to be opened and closed by an operating rod, the movable contactor section is configured to be opened and closed by an operation rod. A puffer-type gas circuit breaker, which is provided with a buffer chamber for relaxing.
【請求項2】 前記可動接触子部が、先端に設けられた
可動アーク接触子と、前記可動アーク接触子の背面側に
設けられた摺動部材と、前記摺動部材の所定の位置に設
けられた鍔部と、前記摺動部材の先端部に形成された係
止部とから構成され、また、前記摺動部材が前記操作ロ
ッドの先端部を貫通して配設され、前記係止部が操作ロ
ッド内を摺動するように構成され、さらに、前記摺動部
材に形成された鍔部と操作ロッドの先端部によって、前
記緩衝室が構成されていることを特徴とする請求項1に
記載のパッファ形ガス遮断器。
2. The movable contact section is provided at a movable arc contact provided at a tip, a sliding member provided on the back side of the movable arc contact, and provided at a predetermined position of the sliding member. And a locking portion formed at the tip of the sliding member, wherein the sliding member is disposed so as to penetrate the tip of the operating rod, and the locking portion is provided. Is configured to slide in the operation rod, and further, the buffer chamber is formed by the flange portion formed on the sliding member and the tip end portion of the operation rod. Puffer type gas circuit breaker described.
【請求項3】 前記操作ロッドの先端部には緩衝室用筒
が配設され、一方、可動接触子部には断面T字形の摺動
部材が配設され、その先端部が前記緩衝室用筒内を摺動
するように構成され、この緩衝室用筒と摺動部材によっ
て、前記緩衝室が形成されていることを特徴とする請求
項1に記載のパッファ形ガス遮断器。
3. A buffer chamber cylinder is provided at the tip of the operating rod, while a sliding member having a T-shaped cross section is provided at the movable contact portion, the tip of which is for the buffer chamber. The puffer-type gas circuit breaker according to claim 1, wherein the buffer chamber is configured to slide in a cylinder, and the buffer chamber and the sliding member form the buffer chamber.
JP19509294A 1994-08-19 1994-08-19 Buffer type gas-blast circuit-breaker Pending JPH0864084A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19509294A JPH0864084A (en) 1994-08-19 1994-08-19 Buffer type gas-blast circuit-breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19509294A JPH0864084A (en) 1994-08-19 1994-08-19 Buffer type gas-blast circuit-breaker

Publications (1)

Publication Number Publication Date
JPH0864084A true JPH0864084A (en) 1996-03-08

Family

ID=16335405

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19509294A Pending JPH0864084A (en) 1994-08-19 1994-08-19 Buffer type gas-blast circuit-breaker

Country Status (1)

Country Link
JP (1) JPH0864084A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101013709B1 (en) * 2008-12-03 2011-02-10 엘에스산전 주식회사 High-speed closing switch in power distributor
US9842717B2 (en) 2015-05-29 2017-12-12 Lsis Co., Ltd. High speed closing switch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101013709B1 (en) * 2008-12-03 2011-02-10 엘에스산전 주식회사 High-speed closing switch in power distributor
US8258419B2 (en) 2008-12-03 2012-09-04 Ls Industrial Systems Co., Ltd. High-speed closing switch in power distributor
US9842717B2 (en) 2015-05-29 2017-12-12 Lsis Co., Ltd. High speed closing switch

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